Just take a look at Battlefield 4 !!! they are more ahead than you, just take a look at their explosions, maps (scenes), driving (hands on the wheel, changing gear),... don't leave ArmA here... improve it a lot more

Have an Idea:
for controlling speed when in vehicles or for doing something that joysticks and rudders do ==> be able to hold a key (for example CTRL) and then scroll the Mouse Wheel.
Please add this feature to ArmA 3 !

==> Please contain more features of VBS2.
==> and: I think when someone goes prone and his weapon is on bipod his stance should be like the old prone stance that was in ArmA 2 not like the new stance that is in ArmA 3.
*** EDIT ***
==> Please use TressFX for Hair & Clothes Simulations!

Well, it started by Flashpoint RedRiver, they putted our country in the game as a very very bad enemy. after that Battlefield 3 putted our country in the game, in that game Iranian soldiers weren't like Iranian people, they insulted too much. The Iranian Government forbid the game battlefield 3 for that! And after that is Splinter-Cell Blacklist and after that will be ArmA 3.
We like to have our country in games but if they put us in a justly position. Iranian people aren't wild (like that Battlefield 3 showed). Most of the times showing our country as the enemy has a universal purpose, they don't just put our country in the games for people to have fun, there is some pressure from US/ISRAEL that makes studios put our country (often for politics) in the games as a wild enemy. They want everybody to get scared from something that they call "Iranian nuclear program".
But in this game (ArmA 3) as they told this game isn't political, we love to see our country in! :D

Sorry if this was mentioned before, but I had a look on some of the ArmA 3 official pictures and I saw this and asked myself:
--- Is this confirmed that the vehicles are customizable? I mean can you customize any vehicle and for example change/put MG on top of it?

==> Please add better and more crowded pants (like US armey) for Iranian team/OpFor
*** EDIT ***
==> Please add DOUBLE and TRIBLE kill to the game (at least for the sniper rifles)
==> When the player is playing for a long time, his soldier's clothes and weapons or his vehicle should take dirt.
==> Grenades and Smokes should include PhysicX (they should roll on the ground)
==> Cars and every vehicle should take damage (instead of dirt) too, at least some damage like GTA series.
==> It's somehow unrealistic when you're in a plane or helicopter and flying but the soldiers in the cockpit don't get influenced by the aircraft movements, I mean they should lean left/right, bend their back, etc. and also when in land vehicles it's so unrealistic too, they should lean left/right on every direction changing or bend their back when taking break.
==> Customizing things like short sleeves, middle sleeves, full sleeves for the soldier.

I'm sorry for several posts that I made... so thanks to moderators I deleted my last post and I will try to collect all of my wishes in ONE post, down here:
==> When an explode is near the player, his ears should take effect. (for example: boooom... I can't hear anything!) [just like Battlefield 3]
==> I think there should be an option to sit on top of APCs and other vehicles and use them as transporter to navigate around.
==> When Periscope comes out of the water it should make tiny waves around it (I mean periscope and anything else)
==> When a soldier moves into trees the leaves should wave a little (tree or anything that has leaves) [i think it is also a good idea for the grasses]
==> The ability to shoot the lights.
==> Please add animations for going upstairs and downstairs in the buildings.
==> Please add Anti-Thermal Clothes/Outfits.
==> Falling/Jumping down from a distance needs animations (rather depend on distance)
==> When people/soldiers are resting (specially in camp MaxWell and villages) they shouldn't look at each other or wait for someone. they should some sort of talk to each other. (like the first mission in MW2) there should be some fake voices showing them talking.
==> Also work on faces (again my example is ModernWarfare series), soldiers face should get angry or focused when aiming down or some sort of sad when wounded and etc. [face animations should be available for AI/Soldiers/People]
==> And it's also cool to have: Dynamic adding as background to the each sent radio message all really audible at the moment on sender's position sounds, if loud enough, as would be in real (shots, vehicles, shouts, environmental...).
*** NEW STANCES ***
==> While in prone there should be three stances like crouch:
---Pop up and look over the grasses instead of switching to 3rd person (can't fire & move in this position)
---Normal prone
---New stealth stance: Keep head between two hands, keep body as close as possible to the ground and hide yourself (can't fire & move in this position)
[3rd stance is useful for snipers or for the situations when enemy is very close, even in campaign]
==> New stances in vehicles for having better view of outside:
---In choppers/planes players bend their back and look around instead of default stance for having better view of downside of the bird.
---In cars/underwater vehicles/tanks/etc. players sit straight and look around instead of default stance for having better view of ground and wheels.
*** FACE OPTIONS ***
==> I think when customizing personal character, there should be the following options for faces there:
---Normal face-make-up for male/female soldiers
---Military face-make-up for male/female soldiers
---Having face-masks (like GHOST in Call of Duty)
---Adding scratches to faces
---Choosing each part of the face-hairs separately
That's it for now!
*** EDIT ***
==> Add animations for looking at GPS/map, watch, compass. (I think it would be great to have equipments like MW3 on hands, that has all the things a player wants on hands so he can easily look at his arms and get the info/watch/GPS/compass. And also when looking at map-not GPS- the soldier/player should take a tablet in his hands. IT'S 20 YEARS LATER, THERE SHOULD BE MORE TECHNOLOGY!)

I found something that could be useful, in forums (thanks to Ezcoo):
Please record many versions of numbers/words (start - in middle of - end of series and do the same with different moods, like "scared", "calm/whispered", "wounded", "Shouting" etc.). Relatively small work but increases the immersion greatly, when the bots reciting numbers/words don't sound like machine voice.
---------- Post added at 22:31 ---------- Previous post was at 22:12 ----------
And also add some RANDOM parts for orders, for example:
-using o'clock - directions(north etc.)
-using names, numbers, infantry degrees
etc.
---------- Post added at 22:39 ---------- Previous post was at 22:31 ----------
Please let players have their OWN names in EVERY part of game(like multiplayer etc.)
---------- Post added at 22:43 ---------- Previous post was at 22:39 ----------
Please record MANY MANY surnames, nicknames, ranks and special cases.